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Computer Hardware

Computer Hardware
Which is the most difficult environmentally to dispose of?

power supplies
hard drives
system boards
CRTs
floppy drives

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Computer Hardware
Which step should you perform first before discharging a CRT?

Turn power off before removing power source
Disconnect the CRT from the computer
Remove the CRT from its housing
Remove the video assembly

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Computer Hardware
What device prevents power interruptions, resulting in corrupted data?

Data guard system
Battery back-up unit
Surge protector
Multiple SIMMs strips

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Computer Hardware
What is modified when changing the system start-up boot sequence?

None of these
COMMAND.COM
CONFIG.SYS
autoexec.bat
BIOS/CMOS

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Computer Hardware
During preventative maintenance on a dot matrix printer, do NOT lubricate:

Print head pulley
Print head pins
Paper advance gear bushings
Platen assembly

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Computer Hardware
How many devices can be used on a single SCSI bus? Keep in mind that the SCSI host adapter counts as a device.

8
1
All of these
10
20

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